<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Since there is not enough data about milkability of the Jersey cows, the aim of this paper is to show basic milkability traits of this cattle breed depending on the parity and milk flow curve types. Cows had average daily production (DMY) of 22.23 kg, milk yield per milking (MYM) of 9.72 kg, and average and maximum milk flow about 1.66 and 2.49 kg/min, respectively. Statistical analysis showed that DMY and MYM of the cows in 4th parity was significantly (p&lt;0.05) higher comparing to cows in 1st and 3th parity. The duration of entirely milking is similar regarding the paritiesand only the cows in 3th and 4th differ significantly (p&lt;0.05). Regarding the effect of milk flow curve, the significant (p&lt;0.05) difference between unspecified and rectangular milk flow curve has been found for the average milk flow (AMF) and descending phase of the milk flow curve (TD). Cows with unspecified milk flow curve, have significantly (p&lt;0.05) lower AMF and longer TD compared to cows with rectangular curve. Cows with bimodal milk flow curve have significantly (p&lt;0.05) longer duration of the ascending phase compering to: unspecified, descending and rectangular. The results of this study have shown that Jersey cows have lower production and milk flow compared to other dairy cattle breeds. Nonetheless, they have uniform milkability traits, and a large representation of desirable milk flow curves which are associated with a beneficial effect on the udder health.</p></abstract>

Since there is not enough data about milkability of the Jersey cows, the aim of this paper is to show basic milkability traits of this cattle breed depending on the parity and milk flow curve types. Cows had average daily production (DMY) of 22.23 kg, milk yield per milking (MYM) of 9.72 kg, and average and maximum milk flow about 1.66 and 2.49 kg/min, respectively. Statistical analysis showed that DMY and MYM of the cows in 4th parity was significantly (p<0.05) higher comparing to cows in 1st and 3th parity. The duration of entirely milking is similar regarding the paritiesand only the cows in 3th and 4th differ significantly (p<0.05). Regarding the effect of milk flow curve, the significant (p<0.05) difference between unspecified and rectangular milk flow curve has been found for the average milk flow (AMF) and descending phase of the milk flow curve (TD). Cows with unspecified milk flow curve, have significantly (p<0.05) lower AMF and longer TD compared to cows with rectangular curve. Cows with bimodal milk flow curve have significantly (p<0.05) longer duration of the ascending phase compering to: unspecified, descending and rectangular. The results of this study have shown that Jersey cows have lower production and milk flow compared to other dairy cattle breeds. Nonetheless, they have uniform milkability traits, and a large representation of desirable milk flow curves which are associated with a beneficial effect on the udder health.

Milkability Evaluation of Jersey Dairy Cows by Lactocorder

Department for Animal Production and Biotechnology, Faculty of Agrobiotechnology Science Osijek

University of Josip Juraj Strossmayer in Osijek

Faculty of Agricultural Sciences and Food

Ss. Cyril and Methodius University in Skopje

Macedonian Veterinary Review

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Milkability Evaluation of Jersey Dairy Cows by Lactocorder"}

Since there is not enough data about milkability of the Jersey cows, the aim of this paper is to show basic milkability traits of this cattle breed depending...

Milkability Evaluation of Jersey Dairy Cows by Lactocorder

Published Online: Mar 15, 2020

Page range: 5 - 12

Received: Sep 25, 2019

Accepted: Dec 02, 2019

DOI: https://doi.org/10.2478/macvetrev-2019-0026

Keywords
Jersey cows, milkability, parity, milk flow curve types

© 2020 Tina Bobić et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Milkability Evaluation of Jersey Dairy Cows by Lactocorder

Published Online: Mar 15, 2020

Page range: 5 - 12

Received: Sep 25, 2019

Accepted: Dec 02, 2019

DOI: https://doi.org/10.2478/macvetrev-2019-0026

KeywordsJersey cows, milkability, parity, milk flow curve types

© 2020 Tina Bobić et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
Jersey cows, milkability, parity, milk flow curve types